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Wed, 18 Mar 2026 09:12:41 -0700 (PDT) From: Felix Gu Date: Thu, 19 Mar 2026 00:12:35 +0800 Subject: [PATCH 2/2] spi: sn-f-ospi: Use devm_mutex_init() to simplify code Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260319-sn-f-v1-2-33a6738d2da8@gmail.com> References: <20260319-sn-f-v1-0-33a6738d2da8@gmail.com> In-Reply-To: <20260319-sn-f-v1-0-33a6738d2da8@gmail.com> To: Mark Brown , Kunihiko Hayashi Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, Felix Gu X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773850356; l=1566; i=ustc.gu@gmail.com; h=from:subject:message-id; bh=zi/HkF2Wrkfy5CiTfwxTMFNPw3MG5goQInCNL8HtPhw=; b=Kt/80OoYepkAeakLlWwJRXmeLEu7GZ66hRYgm6U94ml5XAN9epfJjHYCybbDgD2fCvosO5WTH A34I8ji1JvdApq3Z3Hv7BJeGpnYRFcLoYAWmk7nQr93ieIHf4X+ECkA X-Developer-Key: i=ustc.gu@gmail.com; a=ed25519; pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw= Switch to devm_mutex_init() to handle mutex destruction automatically. This simplifies the error paths in probe() and removes the need for an explicit mutex_destroy() in remove() callback. Signed-off-by: Felix Gu --- drivers/spi/spi-sn-f-ospi.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/drivers/spi/spi-sn-f-ospi.c b/drivers/spi/spi-sn-f-ospi.c index 1f554aa7ca27..3c61c799723b 100644 --- a/drivers/spi/spi-sn-f-ospi.c +++ b/drivers/spi/spi-sn-f-ospi.c @@ -642,29 +642,15 @@ static int f_ospi_probe(struct platform_device *pdev) if (IS_ERR(ospi->clk)) return PTR_ERR(ospi->clk); =20 - mutex_init(&ospi->mlock); - - ret =3D f_ospi_init(ospi); + ret =3D devm_mutex_init(dev, &ospi->mlock); if (ret) - goto err_destroy_mutex; + return ret; =20 - ret =3D devm_spi_register_controller(dev, ctlr); + ret =3D f_ospi_init(ospi); if (ret) - goto err_destroy_mutex; - - return 0; - -err_destroy_mutex: - mutex_destroy(&ospi->mlock); - - return ret; -} - -static void f_ospi_remove(struct platform_device *pdev) -{ - struct f_ospi *ospi =3D platform_get_drvdata(pdev); + return ret; =20 - mutex_destroy(&ospi->mlock); + return devm_spi_register_controller(dev, ctlr); } =20 static const struct of_device_id f_ospi_dt_ids[] =3D { @@ -679,7 +665,6 @@ static struct platform_driver f_ospi_driver =3D { .of_match_table =3D f_ospi_dt_ids, }, .probe =3D f_ospi_probe, - .remove =3D f_ospi_remove, }; module_platform_driver(f_ospi_driver); =20 --=20 2.43.0